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KChan12's avatar
KChan12
Icon for New Contributor rankNew Contributor
7 years ago

For PCIe DMA driver from altera multiple descriptors not working?

Hi , We are using AVMM PCIe DMA example design and modified as per our requirement. In place of onchip memory we are using FIFO. we are using PCIe DMA driver from altera. We can tap the data lines on...
SengKok_L_Intel's avatar
SengKok_L_Intel
Icon for Regular Contributor rankRegular Contributor
7 years ago

​Hi,

The maximum transfer size for each descriptor is 1MB. If without modified the design, did you see the same behavior? What device that you are using? Are you saying, if only 1 descriptor with 2kb of data, you can also see it correctly in the FIFO?

Regards -SK